Question

fill in the black
subject math​

Answer 1

Answer:

I. a) 12 $\pi$

Explaination: CSA of Cone = $\pi$rl = 12$\pi$

II. a) 60°

III. d) 6 cm²

Explaination: 3,4,5 denotes Pythagoras triplets, therefore, the triangle must be a right angled triangle. Height = 3 cm and Base = 4 cm.

Area of a triangle = 1/2 x base x height = 1/2 x 3 x 4 = 3 x 2 = 6 cm²

IV. a) 4$\pi$r²

V. c) 2 (lb + bh + lh)

VI. a) 0 and 1

VII. b) 2$\pi$rh

VIII. b) 3